干旱区生态环境知识资源中心(Arid): Coupling evapotranspiration partitioning with water migration to identify the water consumption characteristics of wheat and maize in an intercropping system

Arid

DOI	10.1016/j.agrformet.2020.108034
	Coupling evapotranspiration partitioning with water migration to identify the water consumption characteristics of wheat and maize in an intercropping system
	Ma, Longshuai; Li, Yinjuan; Wu, Pute; Zhao, Xining; Chen, Xiaoli; Gao, Xiaodong
通讯作者	Zhao, XN
来源期刊	AGRICULTURAL AND FOREST METEOROLOGY
ISSN	0168-1923
EISSN	1873-2240
出版年	2020
卷号	290
英文摘要	Climate change will likely intensify water shortages, so more attention should be given to the efficient use of agricultural water in agricultural production, especially under rainfed conditions. Therefore, studying and understanding crop water consumption amounts and patterns is of great importance. However, the amount of water consumed by the component crops in strip intercropping systems has received little attention. To close this knowledge gap, a two-year field experiment of sole wheat (Triticum aestivum L.), sole maize (Zea mays L.), and wheat/maize strip intercropping was carried out under rainfed conditions. Soil water content, sap flow, soil water evaporation, and evaporation of canopy interception were measured both in intercrops and sole crops. Soil water movement between strips, evapotranspiration components, and water use efficiency were calculated. Compared with corresponding sole crops, intercropping increased water consumption of wheat and maize during the growing period of each crop. Intercropped wheat obtained soil water from the adjacent maize strip during the co-growth period, while intercropped maize obtained soil water from the adjacent wheat strip after wheat harvest. The amount of water obtained by maize was much less than the amount of water obtained by wheat. The transpiration of intercropped wheat was greater than that of sole wheat, but the transpiration of intercropped maize was lower than that of sole maize. Compared with sole cropping, intercropping increased the sap flow rate of wheat in border rows but reduced sap flow rate of maize in border rows, and this phenomenon was pronounced in the case of drought. After wheat harvest, soil water evaporation from the intercropped wheat strip was less than that from sole wheat, and evaporation from the intercropped maize strip was significantly higher than that of sole maize. The two-year average water use efficiency of intercropped wheat was 32% more than that of sole wheat, and water use efficiency of intercropped maize was 10% less than that of sole maize. These results can improve the understanding of water consumption in wheat and maize of intercropping from the point of evapotranspiration partitioning, and provide implications for water management of intercropping system under rainfed conditions.
英文关键词	Evapotranspiration Evapotranspiration partitioning Sap flow Rainfed
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000540172000022
WOS关键词	SAP-FLOW ; SOIL-WATER ; YIELD ADVANTAGE ; CLIMATE-CHANGE ; GROWTH-STAGES ; ARID REGION ; RADIATION INTERCEPTION ; SEMIARID CONDITIONS ; CROP COEFFICIENT ; WINTER-WHEAT
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324735
作者单位	[Ma, Longshuai; Li, Yinjuan; Wu, Pute; Zhao, Xining; Gao, Xiaodong] Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China; [Ma, Longshuai; Li, Yinjuan; Wu, Pute; Zhao, Xining; Chen, Xiaoli; Gao, Xiaodong] Northwest A&F Univ, Inst Water Saving Agr Arid Reg China, 22 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China; [Wu, Pute; Zhao, Xining] Northwest A&F Univ, Coll Water Resources & Architectural Engn, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Ma, Longshuai,Li, Yinjuan,Wu, Pute,et al. Coupling evapotranspiration partitioning with water migration to identify the water consumption characteristics of wheat and maize in an intercropping system[J]. 西北农林科技大学,2020,290.
APA	Ma, Longshuai,Li, Yinjuan,Wu, Pute,Zhao, Xining,Chen, Xiaoli,&Gao, Xiaodong.(2020).Coupling evapotranspiration partitioning with water migration to identify the water consumption characteristics of wheat and maize in an intercropping system.AGRICULTURAL AND FOREST METEOROLOGY,290.
MLA	Ma, Longshuai,et al."Coupling evapotranspiration partitioning with water migration to identify the water consumption characteristics of wheat and maize in an intercropping system".AGRICULTURAL AND FOREST METEOROLOGY 290(2020).